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Science

a large radio antenna with a crowd of people below

Aliens? It's, once again, never aliens.

Radio signals keep coming from deep space. Here's what they really are.

It'll be safe, engineers say. How a NASA nuclear rocket engine could unleash the solar system
Longer than California An enormous Martian cloud returns every spring. Scientists found out why.
The size of Florida Scientists just spotted unnerving melting beneath the 'Doomsday Glacier'

Related categories

Climate Change
Environment
Space

Latest

Man modeling the new Artemis III spacesuit Yes, NASA astronauts will still pee in their new spacesuits
Webb capturing a Wolf-Rayet star Webb telescope captures star on the brink of supernova
A 3D model of 2023 DW A newly discovered asteroid could, but probably won't, hit earth in 2046
thousands of galaxies in space Webb telescope just saw more galaxies in a snapshot than Hubble's deepest look
Cristoforetti sipping espresso in space NASA's sci-fi space cup holds a drink without gravity
More on Latest

Videos

Solar Flares
How worried should we be about Solar Flares?
Massive Black Hole
A black hole is quickly destroying a cloud of gas. Here's why.
Doomsday Glacier
How the 'Doomsday Glacier' could change the world
split image showing a full Venice canal next to an empty one. Caption reads: Dry canals
Why Venice's canals are drying out
Ancient Mars Waves
NASA's Curiosity rover finds ancient waves on Mars
More on Videos

Deals

Screenshot from The Roman Space Observer Game
NASA has released an retro arcade game about the Nancy Grace Roman Telescope
Make sure water is safe for your dog to play in with this quick and easy blue-green algae test
Make sure water is safe for your dog to play in with this quick and easy blue-green algae test
Pamper your pet with free same-day delivery at Petco when you spend over $35
Pamper your pet with free same-day delivery at Petco when you spend over $35
5 on-sale space heaters that can keep you warm and reduce your bill this season
5 on-sale space heaters that can keep you warm and reduce your bill this season
Grab this planetary desk accessory while it's on sale
Grab this planetary desk accessory while it's on sale
More on Deals

Features

At last, we can build a Space Elevator — sort of At last, we can build a Space Elevator — sort of
How a coin for carbon could save the planet How a coin for carbon could save the planet
Why it's impossible to forecast the weather too far into the future Why it's impossible to forecast the weather too far into the future
Welcome to Cloud City: The case for going to Venus, not Mars Welcome to Cloud City: The case for going to Venus, not Mars
Coronavirus and the indoor farming revolution Coronavirus and the indoor farming revolution

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